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lumbocostoabdominal triangle

[ lŭm′bō-kŏs′tō-ăb-dŏmə-nəl ]
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n.

An irregular area bounded by the inferior posterior serratus muscle, the abdominal internal and external oblique muscles, and the erector muscle of the spine.

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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

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